Title :
Spectral classification using fuzzy feature sampling
Author :
Pizzi, Nick J. ; Park, Bae
Author_Institution :
Dept. of Comput. Sci., Univ. of Manitoba, Winnipeg, MB, Canada
Abstract :
Classifying biomedical spectra is often difficult due to the bir voluminous nature; typically, only a small subset of spectral features is discriminatory, while the large majority tends to have a confounding effect on pattern classifiers. We present a two-pronged approach to dealing with this issue. First, we describe an iterative technique whereby many classifier instances operate on different feature subsets. A fuzzy feature sampling method is used to identify discriminatory feature subsets. Second, subsets are aggregated using a fuzzy logic based method. Using a biomedical dataset, we empirically demonstrate that this two-pronged approach produces superior classification accuracies compared against a set of classifier benchmarks.
Keywords :
fuzzy logic; fuzzy set theory; iterative methods; medical computing; pattern classification; biomedical dataset; biomedical spectra classification; discriminatory feature subsets; fuzzy feature sampling method; fuzzy logic based method; iterative technique; pattern classifiers; spectral classification; Accuracy; Benchmark testing; Classification algorithms; Diseases; Frequency selective surfaces; Histograms; Magnetic resonance; biomedical informatics; feature selection; fuzzy logic network; magnetic resonance spectra; pattern classification;
Conference_Titel :
Fuzzy Information Processing Society (NAFIPS), 2011 Annual Meeting of the North American
Conference_Location :
El Paso, TX
Print_ISBN :
978-1-61284-968-3
Electronic_ISBN :
Pending
DOI :
10.1109/NAFIPS.2011.5751956